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  1. Qpid Dispatch
  2. DISPATCH-2041

TSan data race reported from qd_connection_free in system_tests_edge_router

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 1.16.0
    • 1.17.0
    • None
    • Ubuntu Focal TSan job on Travis CI

    Description

      https://travis-ci.com/github/apache/qpid-dispatch/jobs/497063184#L6464

      54: WARNING: ThreadSanitizer: data race (pid=15726)
      54:   Read of size 8 at 0x7b7400082ac8 by thread T3:
      54:     #0 qd_connection_free /home/travis/build/apache/qpid-dispatch/src/server.c:898 (libqpid-dispatch.so+0xebf8b)
      54:     #1 thread_run /home/travis/build/apache/qpid-dispatch/src/server.c:1128 (libqpid-dispatch.so+0xec4ac)
      54:     #2 _thread_init /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:174 (libqpid-dispatch.so+0x94e86)
      54:     #3 <null> <null> (libtsan.so.0+0x2d1af)
      54: 
      54:   Previous write of size 8 at 0x7b7400082ac8 by thread T4 (mutexes: write M5, write M101747775242347584):
      54:     #0 qd_connector_decref /home/travis/build/apache/qpid-dispatch/src/server.c:1693 (libqpid-dispatch.so+0xee112)
      54:     #1 qd_connector_decref /home/travis/build/apache/qpid-dispatch/src/server.c:1688 (libqpid-dispatch.so+0xee112)
      54:     #2 qd_connection_manager_delete_connector /home/travis/build/apache/qpid-dispatch/src/connection_manager.c:1068 (libqpid-dispatch.so+0x70d67)
      54:     #3 <null> <null> (libffi.so.7+0x6ff4)
      54:     #4 qdr_forward_on_message /home/travis/build/apache/qpid-dispatch/src/router_core/forwarder.c:341 (libqpid-dispatch.so+0xb931f)
      54:     #5 qdr_general_handler /home/travis/build/apache/qpid-dispatch/src/router_core/router_core.c:903 (libqpid-dispatch.so+0xc1f89)
      54:     #6 qd_timer_visit /home/travis/build/apache/qpid-dispatch/src/timer.c:205 (libqpid-dispatch.so+0xefbd7)
      54:     #7 handle /home/travis/build/apache/qpid-dispatch/src/server.c:1008 (libqpid-dispatch.so+0xea5de)
      54:     #8 thread_run /home/travis/build/apache/qpid-dispatch/src/server.c:1122 (libqpid-dispatch.so+0xec477)
      54:     #9 _thread_init /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:174 (libqpid-dispatch.so+0x94e86)
      54:     #10 <null> <null> (libtsan.so.0+0x2d1af)
      54: 
      54:   Location is heap block of size 2496 at 0x7b7400082a00 allocated by thread T2:
      54:     #0 posix_memalign <null> (libtsan.so.0+0x3048d)
      54:     #1 qd_alloc /home/travis/build/apache/qpid-dispatch/src/alloc_pool.c:395 (libqpid-dispatch.so+0x5f5d4)
      54:     #2 new_qd_connection_t /home/travis/build/apache/qpid-dispatch/src/server.c:84 (libqpid-dispatch.so+0xe7f95)
      54:     #3 qd_server_connection /home/travis/build/apache/qpid-dispatch/src/server.c:569 (libqpid-dispatch.so+0xe8cd8)
      54:     #4 on_accept /home/travis/build/apache/qpid-dispatch/src/server.c:601 (libqpid-dispatch.so+0xedb7b)
      54:     #5 handle_listener /home/travis/build/apache/qpid-dispatch/src/server.c:855 (libqpid-dispatch.so+0xedb7b)
      54:     #6 handle_event_with_context /home/travis/build/apache/qpid-dispatch/src/server.c:804 (libqpid-dispatch.so+0xea569)
      54:     #7 do_handle_raw_connection_event /home/travis/build/apache/qpid-dispatch/src/server.c:810 (libqpid-dispatch.so+0xea569)
      54:     #8 handle /home/travis/build/apache/qpid-dispatch/src/server.c:1090 (libqpid-dispatch.so+0xea569)
      54:     #9 thread_run /home/travis/build/apache/qpid-dispatch/src/server.c:1122 (libqpid-dispatch.so+0xec477)
      54:     #10 _thread_init /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:174 (libqpid-dispatch.so+0x94e86)
      54:     #11 <null> <null> (libtsan.so.0+0x2d1af)
      54: 
      54:   Mutex M5 (0x7b1000000300) created at:
      54:     #0 pthread_mutex_init <null> (libtsan.so.0+0x4a636)
      54:     #1 sys_mutex /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:45 (libqpid-dispatch.so+0x94eef)
      54:     #2 qd_python_initialize /home/travis/build/apache/qpid-dispatch/src/python_embedded.c:56 (libqpid-dispatch.so+0x97847)
      54:     #3 qd_dispatch /home/travis/build/apache/qpid-dispatch/src/dispatch.c:111 (libqpid-dispatch.so+0x762b9)
      54:     #4 main_process /home/travis/build/apache/qpid-dispatch/router/src/main.c:92 (qdrouterd+0x2b39)
      54:     #5 main /home/travis/build/apache/qpid-dispatch/router/src/main.c:369 (qdrouterd+0x2882)
      54: 
      54:   Mutex M101747775242347584 is already destroyed.
      54: 
      54:   Thread T3 (tid=15730, running) created by main thread at:
      54:     #0 pthread_create <null> (libtsan.so.0+0x5ea99)
      54:     #1 sys_thread /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:183 (libqpid-dispatch.so+0x95442)
      54:     #2 qd_server_run /home/travis/build/apache/qpid-dispatch/src/server.c:1485 (libqpid-dispatch.so+0xeceda)
      54:     #3 main_process /home/travis/build/apache/qpid-dispatch/router/src/main.c:115 (qdrouterd+0x2c27)
      54:     #4 main /home/travis/build/apache/qpid-dispatch/router/src/main.c:369 (qdrouterd+0x2882)
      54: 
      54:   Thread T4 (tid=15731, running) created by main thread at:
      54:     #0 pthread_create <null> (libtsan.so.0+0x5ea99)
      54:     #1 sys_thread /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:183 (libqpid-dispatch.so+0x95442)
      54:     #2 qd_server_run /home/travis/build/apache/qpid-dispatch/src/server.c:1485 (libqpid-dispatch.so+0xeceda)
      54:     #3 main_process /home/travis/build/apache/qpid-dispatch/router/src/main.c:115 (qdrouterd+0x2c27)
      54:     #4 main /home/travis/build/apache/qpid-dispatch/router/src/main.c:369 (qdrouterd+0x2882)
      54: 
      54:   Thread T2 (tid=15729, running) created by main thread at:
      54:     #0 pthread_create <null> (libtsan.so.0+0x5ea99)
      54:     #1 sys_thread /home/travis/build/apache/qpid-dispatch/src/posix/threading.c:183 (libqpid-dispatch.so+0x95442)
      54:     #2 qd_server_run /home/travis/build/apache/qpid-dispatch/src/server.c:1485 (libqpid-dispatch.so+0xeceda)
      54:     #3 main_process /home/travis/build/apache/qpid-dispatch/router/src/main.c:115 (qdrouterd+0x2c27)
      54:     #4 main /home/travis/build/apache/qpid-dispatch/router/src/main.c:369 (qdrouterd+0x2882)
      54: 
      54: SUMMARY: ThreadSanitizer: data race /home/travis/build/apache/qpid-dispatch/src/server.c:898 in qd_connection_free
      

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              Unassigned Unassigned
              jdanek Jiri Daněk
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                Updated:
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